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At what wavenumber would you expect to see an absorbance in the IR if your sample contained water as an impurity? (Answers below are in wavenumbers.)
a) 1250b) 1700c) 2200d) 3400
if a sample of the compound contains 9.41x10^21 lithium ions, how many oxide ions does it contain? show units, show work and answer in scientific notation.
A 14.0-g sample of ice at -18.0°C is mixed with 122.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
what is the role of lithium hydroxide in the removal of the carbon dioxide exhaled by astronauts?
A 125 g aluminum block at an initial temperature of 95°C is dropped into a styrofoam flask containing 150 mL of water at 20°C. What is the final temperature?
Chemistry The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm. The reaction occurs in a 1.09-cm sample cell
Draw the molecular-orbital-energy level diagram for the SO molecule and the NF molecule
Oxygen makes up 46.7 % by mass of the Earth's crust. How many grams of oxygen are present if a sample of the Earth's crust has a mass of 335 g
If 28.9 grams of trans-2-butene reacts with 14.2 grams of HCl to form 15.5 grams of chlorobutane, what is the percent yield?
what volume of oxygen gas will be collected if a 5gram sample of potassium permanganate decomposers at 25 degrees celcius and 1 atmospheric pressure?
If a gas is collected over water at 30.0oC in a 50.0 ml container and the pressure of the "wet" gas is found to be 645 torr, what would the pressure of the "dry" gas be in the same container and temp.
how to calculate ksp of Ca(OH)2 at 296.25K and 364.95K with Ca(OH)2 being titrated with 0.0523M of HCl and 7.80mL of it added at 296.25K
A concentrated solution of compound A in the same solvent was diluted from an initial volume of 2.00 ml to a final volume of 25.00 mL and then had an absorbance of 0.733. What is the concentration of A in the concentrated solution
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